Gordon made an interesting point: "Most drivers don't look farther ahead than 50 yards at night, especially in urban settings, so these are good for most drivers."
i have a particularly weird situation with my night vision in that in partial light (dusk to completely black) I can barely detect the effect of my headlights. I've found that using my fog lights to illuminate the area between the front of my car and 50' or so out where my headlight beam starts tricks my brain into seeing much better. It also helps to avoid potholes and other road hazards that I completely miss.
It's really strange. Once it's completely dark I'm fine, but in low light, it's pretty scary. So much so that when I used to do a lot of motorcycle traveling, I'd stop for dinner at dusk and wait until it was completely dark if I was going to continue riding at night.